{
    "ok": true,
    "domain": "tchncs.de",
    "generated_at": "2026-08-11T06:56:26-05:00",
    "cache": {
        "hit": true,
        "ttl": 0
    },
    "score": {
        "total": 87,
        "label": "Good",
        "categories": {
            "dns": 100,
            "mail": 70,
            "security": 77,
            "network": 85,
            "availability": 100
        },
        "category_weights": {
            "dns": 25,
            "mail": 20,
            "security": 25,
            "network": 10,
            "availability": 20
        },
        "items": [
            {
                "category": "dns",
                "title": "IPv4 (A)",
                "max_points": 30,
                "earned_points": 30,
                "lost_points": 0,
                "detail": "1 IPv4 address(es) detected."
            },
            {
                "category": "dns",
                "title": "IPv6 (AAAA)",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0,
                "detail": "1 IPv6 address(es) detected."
            },
            {
                "category": "dns",
                "title": "Name server redundancy",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0,
                "detail": "3 NS record(s); 2 or more required."
            },
            {
                "category": "dns",
                "title": "SOA record",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0,
                "detail": "Authoritative zone record."
            },
            {
                "category": "dns",
                "title": "DNSSEC chain",
                "max_points": 15,
                "earned_points": 15,
                "lost_points": 0,
                "detail": "DS and DNSKEY detected."
            },
            {
                "category": "dns",
                "title": "CAA policy",
                "max_points": 5,
                "earned_points": 5,
                "lost_points": 0,
                "detail": "Certificate authority restriction."
            },
            {
                "category": "dns",
                "title": "DNS propagation",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0,
                "detail": "Agreement between public resolvers."
            },
            {
                "category": "mail",
                "title": "MX records",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0,
                "detail": "1 MX record(s)."
            },
            {
                "category": "mail",
                "title": "SPF",
                "max_points": 25,
                "earned_points": 25,
                "lost_points": 0,
                "detail": "SPF policy published."
            },
            {
                "category": "mail",
                "title": "DMARC",
                "max_points": 25,
                "earned_points": 25,
                "lost_points": 0,
                "detail": "DMARC policy published."
            },
            {
                "category": "mail",
                "title": "DKIM",
                "max_points": 20,
                "earned_points": 0,
                "lost_points": 20,
                "detail": "No tested DKIM selector responded."
            },
            {
                "category": "mail",
                "title": "MTA-STS",
                "max_points": 5,
                "earned_points": 0,
                "lost_points": 5,
                "detail": "Mail transport policy."
            },
            {
                "category": "mail",
                "title": "TLS-RPT",
                "max_points": 5,
                "earned_points": 0,
                "lost_points": 5,
                "detail": "TLS reporting policy."
            },
            {
                "category": "security",
                "title": "Valid TLS certificate",
                "max_points": 55,
                "earned_points": 55,
                "lost_points": 0,
                "detail": "48 day(s) remaining."
            },
            {
                "category": "security",
                "title": "Certificate lifetime",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0,
                "detail": "Full points require at least 30 days remaining."
            },
            {
                "category": "security",
                "title": "HTTP security headers",
                "max_points": 35,
                "earned_points": 12,
                "lost_points": 23,
                "detail": "3 of 9 evaluated headers detected."
            },
            {
                "category": "network",
                "title": "PTR reverse DNS",
                "max_points": 30,
                "earned_points": 30,
                "lost_points": 0,
                "detail": "PTR: h1.tchncs.de"
            },
            {
                "category": "network",
                "title": "IPv4 diversity",
                "max_points": 35,
                "earned_points": 20,
                "lost_points": 15,
                "detail": "Two or more IPv4 addresses receive full points."
            },
            {
                "category": "network",
                "title": "IPv6 connectivity",
                "max_points": 35,
                "earned_points": 35,
                "lost_points": 0,
                "detail": "AAAA availability."
            },
            {
                "category": "availability",
                "title": "DNS resolution",
                "max_points": 40,
                "earned_points": 40,
                "lost_points": 0,
                "detail": "At least one address family must resolve."
            },
            {
                "category": "availability",
                "title": "HTTP response",
                "max_points": 40,
                "earned_points": 40,
                "lost_points": 0,
                "detail": "HTTP/2 200 "
            },
            {
                "category": "availability",
                "title": "HTTPS final URL",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0,
                "detail": "Final URL uses HTTPS."
            }
        ],
        "methodology": "Each category is normalized to 100. The total is the weighted sum: DNS 25%, Email 20%, Security 25%, Network 10%, Availability 20%.",
        "diagnostics": [
            {
                "level": "ok",
                "title": "IPv4 (A)",
                "detail": "1 IPv4 address(es) detected.",
                "category": "dns",
                "max_points": 30,
                "earned_points": 30,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "IPv6 (AAAA)",
                "detail": "1 IPv6 address(es) detected.",
                "category": "dns",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "Name server redundancy",
                "detail": "3 NS record(s); 2 or more required.",
                "category": "dns",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "SOA record",
                "detail": "Authoritative zone record.",
                "category": "dns",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "DNSSEC chain",
                "detail": "DS and DNSKEY detected.",
                "category": "dns",
                "max_points": 15,
                "earned_points": 15,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "CAA policy",
                "detail": "Certificate authority restriction.",
                "category": "dns",
                "max_points": 5,
                "earned_points": 5,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "DNS propagation",
                "detail": "Agreement between public resolvers.",
                "category": "dns",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "MX records",
                "detail": "1 MX record(s).",
                "category": "mail",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "SPF",
                "detail": "SPF policy published.",
                "category": "mail",
                "max_points": 25,
                "earned_points": 25,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "DMARC",
                "detail": "DMARC policy published.",
                "category": "mail",
                "max_points": 25,
                "earned_points": 25,
                "lost_points": 0
            },
            {
                "level": "error",
                "title": "DKIM",
                "detail": "No tested DKIM selector responded.",
                "category": "mail",
                "max_points": 20,
                "earned_points": 0,
                "lost_points": 20
            },
            {
                "level": "error",
                "title": "MTA-STS",
                "detail": "Mail transport policy.",
                "category": "mail",
                "max_points": 5,
                "earned_points": 0,
                "lost_points": 5
            },
            {
                "level": "error",
                "title": "TLS-RPT",
                "detail": "TLS reporting policy.",
                "category": "mail",
                "max_points": 5,
                "earned_points": 0,
                "lost_points": 5
            },
            {
                "level": "ok",
                "title": "Valid TLS certificate",
                "detail": "48 day(s) remaining.",
                "category": "security",
                "max_points": 55,
                "earned_points": 55,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "Certificate lifetime",
                "detail": "Full points require at least 30 days remaining.",
                "category": "security",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0
            },
            {
                "level": "warning",
                "title": "HTTP security headers",
                "detail": "3 of 9 evaluated headers detected.",
                "category": "security",
                "max_points": 35,
                "earned_points": 12,
                "lost_points": 23
            },
            {
                "level": "ok",
                "title": "PTR reverse DNS",
                "detail": "PTR: h1.tchncs.de",
                "category": "network",
                "max_points": 30,
                "earned_points": 30,
                "lost_points": 0
            },
            {
                "level": "warning",
                "title": "IPv4 diversity",
                "detail": "Two or more IPv4 addresses receive full points.",
                "category": "network",
                "max_points": 35,
                "earned_points": 20,
                "lost_points": 15
            },
            {
                "level": "ok",
                "title": "IPv6 connectivity",
                "detail": "AAAA availability.",
                "category": "network",
                "max_points": 35,
                "earned_points": 35,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "DNS resolution",
                "detail": "At least one address family must resolve.",
                "category": "availability",
                "max_points": 40,
                "earned_points": 40,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "HTTP response",
                "detail": "HTTP/2 200 ",
                "category": "availability",
                "max_points": 40,
                "earned_points": 40,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "HTTPS final URL",
                "detail": "Final URL uses HTTPS.",
                "category": "availability",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0
            }
        ]
    },
    "dns": {
        "records": {
            "A": [
                "89.58.62.32"
            ],
            "AAAA": [
                "2a0a:4cc0:1:337:e44c:e9ff:fe41:6688"
            ],
            "CNAME": [],
            "MX": [
                "10 h1.tchncs.de."
            ],
            "TXT": [
                "\"openpgp4fpr:801038133C9B498305FD6FFD5E1AE9635F532C4A\"",
                "\"google-site-verification=e283FWDjduEjXZ99Qbq5nD4VeP7qrbjQ3Rmzs9Uv6iE\"",
                "\"keybase-site-verification=JA0BQud1tbaAfYXi_WBX_-kf9X6Aicy9wU31PvevwLE\"",
                "\"brave-ledger-verification=e6983f5e531070e9c458d594cb49a902302ce1b846775e44d0cf48d5c7668693\"",
                "\"v=spf1 mx a -all\""
            ],
            "NS": [
                "ns.inwx.de.",
                "ns3.inwx.eu.",
                "ns2.inwx.de."
            ],
            "SOA": [
                "ns.inwx.de. hostmaster.inwx.de. 2026060500 10800 3600 604800 3600"
            ],
            "CAA": [
                "0 issue \"letsencrypt.org\""
            ],
            "DS": [
                "32043 13 2 8F28317C768B0654D5694C9E01F4014FFD08E9A7CB8DAC3D42E1D3D2 C727E83E"
            ],
            "DNSKEY": [
                "257 3 13 Ou4NLzfr3t9xU3luyX8qRNImvdft1rDrEPfN6T1YH71i91U2s4BcwKjX yuxcoZyHCbB+CIyQaOPj5UHOjONr1w=="
            ],
            "RRSIG": [
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                "SOA 13 2 86400 20260820000000 20260730000000 32043 tchncs.de. qJysKTFHnMiw+xn8AUHKkHnY5obCtixz2ZHK7G9j6+25sWStsWY514ge GhDSL/sZ7IbBw0drxA7jzl/w2CD8eg==",
                "TXT 13 2 600 20260820000000 20260730000000 32043 tchncs.de. TuJN4L6UrtPHZ1bgFsWUsstyBOw9i3DBVGn8q7NYu+2dmaJKzXJdRgXo pjC6ozUvmlwiEPFx++z/igdNXZD/jA==",
                "MX 13 2 600 20260820000000 20260730000000 32043 tchncs.de. IllwGsX9yHWcLSFWgYwc0Zyx6Qgfr6yINpbo8Q6ZMgVf8JbQz5FXL8Oz bQvcdZCl5Pb66X22j6om5y2XEPkORg==",
                "DS 8 2 86400 20260817120903 20260803103903 32911 de. CpAdI+dMh1RSGbN+FM6Kk8SCQRz9P7oUFUmMKhWmaeQUSUpOiBRtYstQ ZUKgs/BhsAC+bLYQs+bQ9efi3VMOHw+g+za/0PTE0YIM1Y9mrMl9jLJN NwgfXsTjeyl0RaYhGQpd65klx6wZm57/008C0rhafh1QQrgORDRQ/h98 raI=",
                "CAA 13 2 600 20260820000000 20260730000000 32043 tchncs.de. HB9MmlKGxrstUFWoe7V2NyNZlMO5qNXTk1BxTk0beJvFldWwzmzMYGxB RkDxtuAOyFAX3/GDO25iX9QyBac0wg=="
            ],
            "NSEC": [],
            "NSEC3": [],
            "SRV": [],
            "NAPTR": [],
            "TLSA": [],
            "SSHFP": []
        },
        "ipv4": [
            "89.58.62.32"
        ],
        "ipv6": [
            "2a0a:4cc0:1:337:e44c:e9ff:fe41:6688"
        ]
    },
    "mail": {
        "spf": "v=spf1 mx a -all",
        "dmarc": "v=DMARC1;p=none;pct=100;rua=mailto:postmaster@tchncs.de; adkim=s; aspf=r",
        "dkim_selector": "x",
        "dkim_host": "",
        "dkim": "",
        "spf_analysis": {
            "valid": true,
            "lookups": 2,
            "final": "-all",
            "message": "Within the estimated limit"
        },
        "dmarc_analysis": {
            "valid": true,
            "policy": "none"
        },
        "bimi": "",
        "mta_sts": "",
        "tls_rpt": ""
    },
    "advanced": {
        "ptr": "h1.tchncs.de",
        "propagation": {
            "consistent": true,
            "results": [
                {
                    "provider": "Google",
                    "server": "8.8.8.8",
                    "result": [
                        "89.58.62.32"
                    ],
                    "time_ms": 37.6
                },
                {
                    "provider": "Cloudflare",
                    "server": "1.1.1.1",
                    "result": [
                        "89.58.62.32"
                    ],
                    "time_ms": 51.84
                },
                {
                    "provider": "Quad9",
                    "server": "9.9.9.9",
                    "result": [
                        "89.58.62.32"
                    ],
                    "time_ms": 38.77
                },
                {
                    "provider": "OpenDNS",
                    "server": "208.67.222.222",
                    "result": [
                        "89.58.62.32"
                    ],
                    "time_ms": 28.34
                },
                {
                    "provider": "AdGuard",
                    "server": "94.140.14.14",
                    "result": [
                        "89.58.62.32"
                    ],
                    "time_ms": 149.94
                }
            ]
        }
    },
    "ssl": {
        "available": true,
        "issuer": "Let's Encrypt",
        "subject": "tchncs.de",
        "valid_from": "2026-06-30T15:27:40-05:00",
        "valid_to": "2026-09-28T15:27:39-05:00",
        "days_remaining": 48,
        "san": [
            "assets.tchncs.de",
            "chat.tchncs.de",
            "cloud.tchncs.de",
            "files.tchncs.de",
            "forum.tchncs.de",
            "haste.tchncs.de",
            "img.tchncs.de",
            "mail.tchncs.de",
            "media.tchncs.de",
            "monitor.tchncs.de",
            "muc.tchncs.de",
            "sailfish-for-opo.tchncs.de",
            "tchncs.de",
            "x.tchncs.de"
        ],
        "protocol": "TLSv1.3",
        "cipher": "TLS_AES_256_GCM_SHA384"
    },
    "http": {
        "url": "https://tchncs.de/",
        "status": "HTTP/2 200 ",
        "http_version": "3",
        "headers": {
            "server": "nginx",
            "date": "Tue, 11 Aug 2026 11:56:23 GMT",
            "content-type": "text/html",
            "content-length": "37681",
            "last-modified": "Mon, 10 Aug 2026 13:58:14 GMT",
            "vary": "Accept-Encoding",
            "etag": "\"6a79d8f6-9331\"",
            "permissions-policy": "interest-cohort=()",
            "content-security-policy": "default-src https: 'unsafe-inline' 'unsafe-eval' 'self' data: *.tchncs.de",
            "referrer-policy": "strict-origin",
            "accept-ranges": "bytes"
        },
        "security_checks": {
            "strict-transport-security": false,
            "content-security-policy": true,
            "x-content-type-options": false,
            "x-frame-options": false,
            "referrer-policy": true,
            "permissions-policy": true,
            "cross-origin-opener-policy": false,
            "cross-origin-embedder-policy": false,
            "cross-origin-resource-policy": false
        },
        "server": "nginx",
        "powered_by": ""
    },
    "webpage": {
        "url": "https://tchncs.de/",
        "title": "Hallöchen!\n : tchncs.de",
        "description": "",
        "success": true,
        "error": "",
        "status": 200
    },
    "network": {
        "89.58.62.32": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        }
    },
    "smtp": {
        "host": "h1.tchncs.de",
        "ports": [
            {
                "port": 25,
                "open": false,
                "time_ms": 9.1,
                "banner": "",
                "error": "Network is unreachable"
            },
            {
                "port": 465,
                "open": false,
                "time_ms": 118.2,
                "banner": "",
                "error": "No connection"
            },
            {
                "port": 587,
                "open": false,
                "time_ms": 119,
                "banner": "220 h1.tchncs.de",
                "error": "No connection"
            }
        ]
    },
    "visitor": {
        "ip": "216.73.217.62",
        "reverse": "",
        "country": "",
        "country_code": "",
        "region": "",
        "city": "",
        "latitude": null,
        "longitude": null,
        "isp": "",
        "organization": "",
        "asn": "",
        "timezone": "",
        "browser": "Other",
        "os": "Other",
        "language": "",
        "user_agent": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)",
        "is_bot": true,
        "cloudflare": false
    },
    "analysis_time_ms": 78.08
}